Malignant Peripheral Nerve Sheath Tumor -A Rare Malignancy in Mandible

Area of Science:

• Oncology
• Surgical Pathology
• Head and Neck Cancer

Background:

• Malignant Peripheral Nerve Sheath Tumor (MPNST) is an aggressive neoplasm originating from nerve sheath cells.
• MPNST commonly affects the extremities and trunk, but can infrequently occur in the head and neck, including the mandible.
• Mandibular MPNST may arise from neurofibromas or develop de novo.

Observation:

• A case of MPNST in the mandible of a 25-year-old female is presented.
• The tumor exhibited significant clinical and histological variability.
• Surgical excision was performed, followed by immunohistological analysis.

Findings:

• Immunohistological studies utilizing S-100 and Neuron-Specific Enolase confirmed the neural origin of the mandibular tumor.
• The findings support the diagnosis of Malignant Peripheral Nerve Sheath Tumor.

Implications:

• This case highlights the importance of considering MPNST in the differential diagnosis of mandibular tumors, especially given its rarity and variable presentation.
• Accurate diagnosis through immunohistochemistry is crucial for appropriate management and treatment planning of MPNST.
• Further research into the specific characteristics and treatment of mandibular MPNST may improve patient outcomes.